Probing the electron-phonon interaction in correlated systems with coherent lattice fluctuation spectroscopy
Probing the electron-phonon interaction in correlated systems with coherent lattice fluctuation spectroscopy
Tailoring the properties of correlated oxides is accomplished by chemical doping, pressure, temperature or magnetic field. Photoexcitation is a valid alternative to reach out-of-equilibrium states otherwise inaccessible. Here, we quantitatively estimate the coupling between a lattice distortion and the charge-transfer excitation in (La$_2$CuO$_{4+\delta}$). We photoinduce a coherent La ion vibration …